ASE MLR practice UPDATED ACTUAL
Questions and CORRECT Answers
a vehicles right front wheel has a growling noise that increases with vehicle speed. most likely
cause is: - CORRECT ANSWER - a worn out wheel bearing will cause a growl that
increases with speed.
White colored exhaust is billowing from the tailpipe of a vehicle. Which of the following is
correct?
A. It has worn piston rings.
B. It has a leaking head gasket.
C. It has worn valve seals.
D. It has a leaking fuel injector. - CORRECT ANSWER - Answer B is correct. A leaking
head gasket results in a coolant leak from the jacket into the cylinder producing white/gray
exhaust.
An automatic transmission's fluid is pink and milky. Technician A says this is caused by engine
overheating. Technician B says the transmission could have been overfilled and the fluid has
become aerated. Who is correct? - CORRECT ANSWER - No one is correct. Neither
technician is correct, the ATF is contaminated with coolant.
Technician A says fuel filters have an arrow that always points toward the fuel tank. Technician
B says a clogged fuel filter will reduce fuel pressure at the fuel rail. Who is correct? - CORRECT
ANSWER -
. A vehicle with power assist brakes has a hard brake pedal with little stopping power. Which of
these is the MOST likely cause of this condition?
A. The brake booster.
B. The master cylinder.
C. Air in the system.
, D. Contaminated brake fluid. - CORRECT ANSWER -
a vehicle pulls to the left only while braking. technician A says this could be a restricted left
break line. technician B says this could be a frozen right caliper. who is correct? - CORRECT
ANSWER - it is technician B because a frozen right front caliper will cause the vehicle to
pull to the left when breaking. and if it were the front break line wit would cause the vehicle to
turn right not left. because the right front break has more stopping power.
a vehicles air conditioner blows cold air while driving at normal speeds, but warm while at a stop
lights. the LEAST likely cause of this condition is: - CORRECT ANSWER - a frozen
expansion valve: this is the least likely type question. once the expansion valve freezes, the air
conditioner would have poor performance at all speeds
a technician runs a scan and receives a fault code indicating a problem in the MAF sensor circuit.
technician A says this could be caused by a loose wire or an intermittent open. technician B says
this could be caused by a faulty MAF sensor. who is correct? - CORRECT ANSWER -
Both A and B are correct.
a vehicle blows blue gray exhaust from its tailpipe only when first started in the morning. the
MOST likely cause of this condition is: - CORRECT ANSWER - a leaking valve seal will
cause oil to leak into the cylinder's chamber over time, usually overnight, resulting in blue gray
exhaust at first start.
the headlights get brighter as the engine is revved. Technician A says this is caused by a high
capacity battery. Technician B says this is caused by a faulty voltage regulator. who is correct? -
CORRECT ANSWER - Technician B is correct. at the heart of the charging system is the
alternator, if the alternator outputs excessive or high charging voltage, check voltage regulation;
electrical components, and electronics will be affected. and because the battery is primarily used
to start up the engine.
A vehicle with a power rack and pinion steering system is binding only while turning corners.
which of these are least likely to cause this condition? - CORRECT ANSWER - worn rack
bushings can cause a vehicle to wander. this is a least likely type question.
Questions and CORRECT Answers
a vehicles right front wheel has a growling noise that increases with vehicle speed. most likely
cause is: - CORRECT ANSWER - a worn out wheel bearing will cause a growl that
increases with speed.
White colored exhaust is billowing from the tailpipe of a vehicle. Which of the following is
correct?
A. It has worn piston rings.
B. It has a leaking head gasket.
C. It has worn valve seals.
D. It has a leaking fuel injector. - CORRECT ANSWER - Answer B is correct. A leaking
head gasket results in a coolant leak from the jacket into the cylinder producing white/gray
exhaust.
An automatic transmission's fluid is pink and milky. Technician A says this is caused by engine
overheating. Technician B says the transmission could have been overfilled and the fluid has
become aerated. Who is correct? - CORRECT ANSWER - No one is correct. Neither
technician is correct, the ATF is contaminated with coolant.
Technician A says fuel filters have an arrow that always points toward the fuel tank. Technician
B says a clogged fuel filter will reduce fuel pressure at the fuel rail. Who is correct? - CORRECT
ANSWER -
. A vehicle with power assist brakes has a hard brake pedal with little stopping power. Which of
these is the MOST likely cause of this condition?
A. The brake booster.
B. The master cylinder.
C. Air in the system.
, D. Contaminated brake fluid. - CORRECT ANSWER -
a vehicle pulls to the left only while braking. technician A says this could be a restricted left
break line. technician B says this could be a frozen right caliper. who is correct? - CORRECT
ANSWER - it is technician B because a frozen right front caliper will cause the vehicle to
pull to the left when breaking. and if it were the front break line wit would cause the vehicle to
turn right not left. because the right front break has more stopping power.
a vehicles air conditioner blows cold air while driving at normal speeds, but warm while at a stop
lights. the LEAST likely cause of this condition is: - CORRECT ANSWER - a frozen
expansion valve: this is the least likely type question. once the expansion valve freezes, the air
conditioner would have poor performance at all speeds
a technician runs a scan and receives a fault code indicating a problem in the MAF sensor circuit.
technician A says this could be caused by a loose wire or an intermittent open. technician B says
this could be caused by a faulty MAF sensor. who is correct? - CORRECT ANSWER -
Both A and B are correct.
a vehicle blows blue gray exhaust from its tailpipe only when first started in the morning. the
MOST likely cause of this condition is: - CORRECT ANSWER - a leaking valve seal will
cause oil to leak into the cylinder's chamber over time, usually overnight, resulting in blue gray
exhaust at first start.
the headlights get brighter as the engine is revved. Technician A says this is caused by a high
capacity battery. Technician B says this is caused by a faulty voltage regulator. who is correct? -
CORRECT ANSWER - Technician B is correct. at the heart of the charging system is the
alternator, if the alternator outputs excessive or high charging voltage, check voltage regulation;
electrical components, and electronics will be affected. and because the battery is primarily used
to start up the engine.
A vehicle with a power rack and pinion steering system is binding only while turning corners.
which of these are least likely to cause this condition? - CORRECT ANSWER - worn rack
bushings can cause a vehicle to wander. this is a least likely type question.
